Inductive motor mathematics model suitable for high switching frequency inverter drive is described in this paper.
主要研究适用于高开关频率变频器驱动的感应电动机数学模型。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
High power GTO inverter is used for railway electric traction. Its PWM control is significantly different from variable frequency drive system in conventional industrial area.
大功率GTO逆变器用于铁路电力牵引，其PW M控制与一般工业领域中的变频调速系统的PWM控制有很大不同。
In this paper, double-frequency inverter was used in induction motor drive, and the next control means were adopted: one-cycle control, hysteresis control and vector control.
将双频逆变器用于感应电动机调速系统中，采用单周控制、滞环控制、矢量控制等控制方法。
Direct drive - the choice for longer tracks and sophisticated tasks. This system comes with PLC controller and frequency inverter; it gets the power from conductors or on request via conductor chain.
直接传动-长轨道、高要求应用、系统由PLC和变频器组成，传动力来源于内部发生器或发生链。
Speed is easy to adjust due to frequency-inverter and drive is steady so that energy can be saved.
采用变频器调速，速度调节方便，传动平稳，节约电能。
Speed is easy to adjust due to frequency-inverter and drive is steady so that energy can be saved.
采用变频器调速，速度调节方便，传动平稳，节约电能。
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